He has shared photos of her to his page but never of the two of them together.

It's a rare glimpse at their relationship.

"Riverdale" actor Cole Sprouse gave fans a rare glimpse into his relationship with co-star Lili Reinhart on his Instagram.

The 26-year-old actor shared an intimate photo early Sunday morning of the two of them laughing and almost kissing. Though he's shared many photos of Reinhart, 21, that he's taken, the new adorable photo is the first time he's posted one of them together.

"It's pretty, pretty late," he captioned the image.

Sprouse and Reinhart's relationship has been a major topic of interest and speculation for fans of The CW series. Reports that the couple were dating first started circulating in the summer of 2017 when they were at Comic-Con, and though they have never explicitly confirmed their relationship, they've been more public. They were spotted kissing in Paris in April and went to Mexico together.

"I've decided to start uploading some of my more personal photographs on this Instagram," he wrote on the platform. "If you've ever spent a bit of time with me, you'll know I take my privacy quite seriously, much of that paranoia influenced by my youth. I understand social media will always carry a bit of a curated superficiality, but I have so many sentimental photos that, like a collector, I've kept in the original packaging for far too long. I'm hoping some of the photos I'll be posting from here on out will feel a bit more...honest, as they do to me."